Wrench



n. SCHLUTZ.

y WRENCH. APPLICATION FILED'APH. 2D, 1920- Patented Nov. 1, 1921.

UNITED STATES PATENT OFFICE.

HENRY SCHL'UTZ, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR OF TWO-FIFTHS TO JACOB L. KNOEDLER, OF OPTION, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented N ov. 1, 1921.

Application led April 20, 1920. Serial No. 375,327.

To all fr0/0m t may concern:

Be it known that I, HENRY SCHLUTZ, a citizen of the United States, residing at Mount Oliver, Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Vrenches, of which the following is a specification.

This invention relates to socket wrenches of the type particularly adapted for use in automobile repair and adjustment work wherein wrenches of the ordinary character are unhandy, due to the peculiar location of the parts of the machine which are necessary of repair or adjustment. 'Y

The invention relates particularly to wrenches which may be quickly adjusted to various sizes of nuts or other objects of polygonal form.

The invention further contemplates in combination with the wrench, a handle, provided with means at each end for holding the wrench during operations.

An object of my invention is to' provide a wrench the jaws of which may be quickly adjusted to grasp polygonal nuts or other objects of polygonal form; and further to provide a wrench extremely simple in operation and of few parts which may be readily assembled and interchanged or substituted when necessary.

Referring to the drawings,

Figure 1 is a side elevation of my wrench and handle, illustrating in full and dotted lines respectively, the manner in which the wrench may be applied to either end of the handle;

Fig. 2 is a longitudinal sectional view of my wrench;

Fig. 3 is a transverse section taken on line 3-3 of Fig. 2, and l Figs. 4 and 5 are perspective views at dilferent angles of the jaws of the wrench.

The saine reference characters indicate the same parts in all the figures.

Referring now -to the wrench 10 repre-V sents the body or stock, said stock being elongated and of relatively smaller polygonal cross-section at its lower end 11 which is formed with a polygonal socket 12. At its upper end, the stock is formed with a pair of jaw guiding members 14 141, connected by an integral yoke 15, which with said jaw guiding members 14-141 provide a housing for the Shanks 16-17 of the jaws,

. ing operations of the jaws to be described, thus effectually securing said jaws against vertical movement as well as lateral movement relative to the said guiding members. 18 and 19 represent the jaws of the wrench carried by said Shanks 16 and 17, each of said jaws having a socket, the two sockets being of a form suitable to grasp the head of a polygonal nut or bolt or other object which is to be operated. lVhi'le the jaws and jaw supporting shanks are in. general, counterparts, there are certain distinctions between the two which constitute of each jaw, there is provided an integral spacing portion 20-201, respectively, which elevate the jaws in each instance so that its lower edge is flush with or very slightly above, the surface of the yoke 15, said spacing portion approximating the thickness of said yoke.

Referringrfirst to the jaw 18, it will be observed that the spacing portion 20 is provided with a shoulder 21, which coperates for interlocking engagement with a correspondingly recessed portion 22 on the end of the shank 17 of thejaw 19 to limit movement of the aws toward each other. The spacing portion 2O1 of the jaw has a shoulder 23 which cooperates with the end portion 24 of the shank 1G of jaw 18.` During adjustthe inner faces of the shanks 16 and 17 bear against each other as will be seen in Figs. 2 and 3, the cross-sectional area of the two when assembled approXimating that of the space between the guiding members 14-141.

Upon the lower outer faces, the Shanks 16 and 17 are provided with a series of rack teeth 25 for the purpose to be described. Extending transversely through the stock 10 of the wrench, and at right angles to that formed by the guiding members 14-` 141 is an opening 26 adapted to receive rotary operating screws 27 journaled in bear ings 28 in the stock of the wrench The screws which are knurled to facilitate rotation for instance by the thumb, and which extend slight-ly beyond the opening 26 upon each side of the stock respectively, mesh with the rack teeth upon the jaw shanks 16-17.

It will now be seen that rotation of both of the screws in the direction indicated by the arrows in Fig. 2 will cause a simultaneous movement of the Shanks alongside of ioo each other in one direction or the other, depending upon the threading of the screws;

that is to say, whether they are right or lett hand threads, and the corresponding form of the rack teeth of the shanks of the jaws. The jaw-s may be readily assembled or disassembled by continuing the movement of the jaws in one direction or the other as the case may be.

A novel form of my operating handle is shown in Fig. l, consisting of an angular bar 29 having on one end, a polygonal socket 30 coperating with the external lower polygonal end 11 of the stock of the wrench, the other end having a polygonal shank 3-0, cooperating with the socket 12. It will thus be seen that the connection of the handle at either end with the wrench is readily interchangeable whenever occasion necessitates.

l wish it to be understood, that while I haveshown and described a particular form of my invention, I do not limit it to the speciic structure and details illustrated, as many changes may be made within the scope of the following claims.

' Having thus described my invention, what il claim as new and desire to protect by Letters Patent is l. A socket wrench, comprising a stock, having an upper recessed portion, jaws having their complemental shanks slidably mounted within said recess, there being integra-l spacing portions connecting the mental shank to limit movement of the jaws toward each other, said jaw's'having recesses which cooperate to Vprovide a polygonal nut engaging socket, and means for operating -said jaws toward and from each other to Vary thesize of the socket.

2, A socket wrench comprising a stock having a polygonal socket in one endthereof, the other end having a transverse recess and a terminal opening communicating with the recess and disposed at right angles thereto, a yoke spanning the terminal opening, jaws having shanks oppositely lslidable lengthwise of the terminal opening beneath said yoke with the lower portions thereof extending transversely of and downwardly into the recess, and each having a series of rack teeth'upon the outer faces of the lower portions thereof, operating screws journaled transversely of said recess below the terminal opening and upon opposite sides of the lower portions of the shank and meshing with the rack teeth on said-jaw Shanks, said screws projecting slightly beyond the walls of said recess to facilitate engagement by the hand for rotation whereby said jaws are moved toward or away from eachother.

In testimony whereof I affix my signature.

HENRY SCHLUTZ. 

